| PEOPLE | St. Joseph | Rochester Hills | United States |
| Population | 8,365 | 70,995 | 308,035,306 |
| Pop. Density | 2,602 | 2,163 | 87 |
| Pop. Change | -4.57% | 3.55% | 8.07% |
| Median Age | 41.6 | 40.9 | 37.3 |
| Households | 3,933 | 27,578 | 116,716,292 |
| Household Size | 1.97 | 2.53 | 2.58 |
| Male Population | 48.77% | 48.38% | 49.27% |
| Female Population | 51.23% | 51.62% | 50.96% |
| Married Population | 38.36% | 58.74% | 47.02% |
| Single Population | 61.64% | 41.26% | 52.98% |
| ESTIMATED TOTAL POPULATION BY AGE | | | |
| Age 0 to 4 | 4.67% | 5.71% | 6.56% |
| Age 5 to 9 | 4.47% | 6.75% | 6.61% |
| Age 10 to 14 | 4.52% | 6.98% | 6.71% |
| Age 15 to 17 | 2.76% | 4.28% | 4.21% |
| Age 18 to 20 | 2.12% | 2.16% | 2.95% |
| Age 21 to 24 | 7.03% | 5.47% | 7.01% |
| Age 25 to 34 | 16.29% | 10.75% | 13.33% |
| Age 35 to 44 | 12.38% | 13.76% | 13.33% |
| Age 45 to 49 | 14.26% | 16.39% | 14.61% |
| Age 50 to 54 | 14.26% | 16.39% | 14.61% |
| Age 55 to 59 | 12.89% | 14.00% | 11.84% |
| Age 60 to 64 | 12.89% | 14.00% | 11.84% |
| Age 65 to 74 | 7.53% | 7.23% | 7.05% |
| Age 75 to 84 | 6.04% | 4.20% | 4.24% |
| Age 85 and over | 5.03% | 2.32% | 1.78% |
| RACE | | | |
| White | 88.12% | 82.13% | 72.41% |
| Black | 5.33% | 4.55% | 12.61% |
| Asian | 3.40% | 10.50% | 4.75% |
| American Indian | 0.33% | 0.19% | 0.95% |
| Other | 2.82% | 2.63% | 9.28% |
| Hispanic | 1.12% | 1.85% | 16.35% |
| Non-Hispanic | 98.88% | 98.15% | 83.65% |
| FAMILY | | | |
| Married, w/children | 25.66% | 37.74% | 30.42% |
| Married, no children | 50.39% | 46.77% | 42.46% |
| Single, w/children | 13.45% | 7.63% | 14.39% |
| Single, no children | 10.51% | 7.86% | 12.73% |
| Divorced | 15.47% | 8.69% | 10.62% |
| Separated | 4.30% | 2.34% | 4.97% |
| Widowed | 9.82% | 5.37% | 6.14% |
| Now Married | 37.99% | 58.05% | 46.32% |
| Never Married | 32.42% | 25.55% | 31.95% |
